зеркало из https://github.com/microsoft/clang-1.git
60 строки
2.0 KiB
C
60 строки
2.0 KiB
C
// RUN: %clang_cc1 -analyze -analyzer-checker=core,experimental.core,debug.ExprInspection -analyzer-store=region -analyzer-constraints=basic -verify %s
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// RUN: %clang_cc1 -analyze -analyzer-checker=core,experimental.core,debug.ExprInspection -analyzer-store=region -analyzer-constraints=range -verify %s
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void clang_analyzer_eval(int);
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int string_literal_init() {
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char a[] = "abc";
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char b[2] = "abc"; // expected-warning{{too long}}
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char c[5] = "abc";
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clang_analyzer_eval(a[1] == 'b'); // expected-warning{{TRUE}}
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clang_analyzer_eval(b[1] == 'b'); // expected-warning{{TRUE}}
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clang_analyzer_eval(c[1] == 'b'); // expected-warning{{TRUE}}
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clang_analyzer_eval(a[3] == 0); // expected-warning{{TRUE}}
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clang_analyzer_eval(c[3] == 0); // expected-warning{{TRUE}}
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clang_analyzer_eval(c[4] == 0); // expected-warning{{TRUE}}
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return 42;
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}
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void nested_compound_literals(int rad) {
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int vec[6][2] = {{0.195, 0.02}, {0.383, 0.067}, {0.55, 0.169}, // expected-warning 6 {{implicit conversion from 'double' to 'int' changes value from}}
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{0.831, 0.45}, {0.924, 0.617}, {0.98, 0.805}}; // expected-warning 6 {{implicit conversion from 'double' to 'int' changes value from}}
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int a;
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for (a = 0; a < 6; ++a) {
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vec[a][0] *= rad; // no-warning
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vec[a][1] *= rad; // no-warning
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}
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}
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void nested_compound_literals_float(float rad) {
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float vec[6][2] = {{0.195, 0.02}, {0.383, 0.067}, {0.55, 0.169},
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{0.831, 0.45}, {0.924, 0.617}, {0.98, 0.805}};
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int a;
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for (a = 0; a < 6; ++a) {
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vec[a][0] *= rad; // no-warning
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vec[a][1] *= rad; // no-warning
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}
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}
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void struct_as_array() {
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struct simple { int x; int y; };
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struct simple a;
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struct simple *p = &a;
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p->x = 5;
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clang_analyzer_eval(a.x == 5); // expected-warning{{TRUE}}
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clang_analyzer_eval(p[0].x == 5); // expected-warning{{TRUE}}
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p[0].y = 5;
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clang_analyzer_eval(a.y == 5); // expected-warning{{TRUE}}
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clang_analyzer_eval(p->y == 5); // expected-warning{{TRUE}}
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}
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